Initial zero digit in phone numbers

[midorikocak]

These formats should be allowed, by making initial zero optional:

• 5321234567
• 532 123 45 67
• 2121234567
• 212 123 45 67

[aliayen]

I fixed this in my fork, please have a look at: https://github.com/aliayen/turkiye-regex-kaliplari

@mgulener can you please merge if you think it's OK? Thanks